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55results about How to "Guarantee the construction quality" patented technology

Steel box-core concrete combined cable tower construction method

The application discloses a kind of steel box-core concrete combined cable tower construction methods, comprising the following steps: S1, the steel structure shell of steel-concrete combined section is divided into multiple steel tower blocks along vertical direction;Standard section is divided into core block and the side block of two sides;S2, hoist first section steel tower block, after installing formwork and reinforcement in steel tower block, fill concrete;S3, repeat the step S2 until the construction of steel-concrete combined section is completed;S4, hoist the core block of first section standard section on steel-concrete combined section, then hoist the side block of two sides in turn;After hoisting is completed, horizontal weld between core block, vertical weld between core block and the side block of two sides, horizontal weld between section are welded in turn;S5, after installing reinforcement in core block, pour concrete;S6, repeat the step S4-S5 until the construction of all remaining standard sections is completed.The application gives a complete and efficient steel box-core concrete combined cable tower construction method, which effectively guarantees the construction quality of cable tower.
Owner:CCCC SECOND HARBOR ENGINEERING CO LTD +1

A tunnel side wall lining rapid moving lining trolley

A rapid-moving lining trolley for tunnel sidewall lining includes a dump truck. A mounting plate is vertically installed on the side of the dump truck's cargo box, and steel formwork is connected to the mounting plate via an automatic telescopic rod matrix. This invention utilizes hydraulic rods in conjunction with the steel formwork structure to form a stable support, effectively resisting construction vibrations and ensuring structural stability during concrete pouring, thus guaranteeing construction quality and safety. This invention, through modification of a conventional dump truck, allows for convenient on-site relocation and rapid deployment to unstable rock sections such as shallowly buried tunnel sections, weak and fractured zones, and fault zones. Especially in areas with a risk of sudden collapse, it can respond quickly and arrive at the work location promptly to carry out reinforcement work, exhibiting strong adaptability and high mobility.
Owner:中国水电建设集团十五工程局有限公司

A detachable and shaped reinforcing device for a suspended toilet mold

The utility model provides a bathroom hanging mould detachable shaping reinforcement device belongs to bathroom hanging mould construction technical field, this bathroom hanging mould detachable shaping reinforcement device includes the rod body and sets up the positioning spare at the both ends of rod body, the rod body includes fixed rod and movable rod, and the one end fixed connection of movable rod is close to fixed rod has inserted rod, and inserted rod can insert the inside of fixed rod, and is provided with adjusting assembly between fixed rod and movable rod, the positioning spare includes mounting panel, first bracing piece and second bracing piece, and the one end of mounting panel is provided with the connecting block, and second bracing piece sets up at the bottom of connecting block, and first bracing piece sets up at the bottom of mounting panel, this device cooperates between telescopic rod body and positioning spare, after construction is completed, and the device can dismantle fast and save strength, solves the problem that traditional plank reinforcing mode dismantles difficultly, and the material is easily damaged, can adapt to the bathroom of different bay size, effectively saves construction cost.
Owner:CHINA CONSTR FIFTH ENG DIV CORP LTD

A concrete vibrating bubble elimination device

The utility model belongs to concrete bubble elimination device technical field, concretely is a kind of concrete vibrating bubble elimination device, including push box, push box one side is fixedly installed with installation box one, installation box one is fixedly installed with transmission assembly, four groups of structure identical lifting damping components are equipped in transmission assembly, and four groups lifting damping components pass through push box, the bottom end of lifting damping component is all fixedly connected with universal wheel, the one side of push box is fixedly installed with two groups of support, provide high frequency and low frequency vibrating by vibrating assembly one and vibrating assembly two respectively, high frequency vibrating can quickly discharge the bubble of concrete surface and shallow layer, make concrete internal structure more dense, low frequency vibrating can be in-depth to concrete deep layer, auxiliary exclusion deep bubble, make concrete fill template every corner, and the mutual cooperation of both, greatly improve the vibrating quality and uniformity of concrete.
Owner:CCCC THREE PUBLIC SERVICE BUREAU HUAZHONG CONSTR CO LTD

A method and system for intelligent analysis of the bottom support status of caissons based on correlation features

ActiveCN122087270ARealize quantitative determination of support statusAccurate and Efficient PredictionClimate change adaptationEngineeringCorrelation analysis
This invention discloses an intelligent analysis method and system for the bottom support status of caissons based on correlation features, relating to the field of caisson construction monitoring technology. The method includes: acquiring strain time-series data of the target monitoring location at the bottom of the caisson during the drainage sinking stage; preprocessing the strain time-series data and classifying and labeling the support status, constructing labeled sample data, where the support status includes both voided and non-voided states; performing various correlation analyses on the labeled sample data to mine multiple correlation information between the sample data and the support status; constructing a classification prediction model for each correlation information, and training the classification prediction model using each correlation information; deploying the trained classification prediction models to the non-drainage sinking stage, and comprehensively judging the bottom support status of the caisson during the non-drainage sinking stage based on the prediction results of each classification prediction model. This invention can achieve accurate and efficient identification of the bottom support status of caissons during the non-drainage sinking stage.
Owner:中铁桥隧技术有限公司

Dike closure method based on whole assembly type double-culvert closure bottom structure

The present application belongs to the technical field of water conservancy and hydropower engineering closure construction, and particularly relates to a kind of embankment closure method based on integral assembly type double ridge closure bottom protection structure.The present application precast and accurately throw the integral bottom protection structure formed by rigid connection of bottom protection section and double ridge section in dry season of a year before closure, with standardized reinforced gabion as basic unit, adopt double connection inside and outside to form continuous plate type whole, with high impact resistance and stone blocking foot capacity.Through particle size and impact distance calculation, throw test, GPS joint positioning to realize accurate underwater throwing.After bottom protection construction is completed, embankment pre-advance is implemented in dry season of next year, and large stone and reinforced gabion are continuously thrown in closure stage, which can improve the stability of throwing material, prevent embankment collapse, and realize safe and rapid closure.The present application can solve the problems of traditional dispersed bottom protection, such as easy loss, low precision, interference with flood discharge, etc., and greatly improve the safety and efficiency of closure under complex riverbed conditions.
Owner:CHINA WATER NORTHEASTERN INVESTIGATION DESIGN & RES

A track pipe installation positioning protection device

ActiveCN224282730UReliable and safe positioning protectionavoid cloggingMining devicesClassical mechanicsRailway engineering
A track-passing pipe installation positioning and protection device, belonging to the field of tunnel engineering construction technology, includes an inverted trapezoidal shell with windows in the middle of the upper and lower surfaces. Several sets of movable track-passing pipe protection components are arranged along the length of the bottom center of the shell. Each set of track-passing pipe protection components includes two track-passing pipe positioning plates symmetrically arranged about the horizontal centerline of the shell. One end of the two positioning plates contacts each other, and the contact ends of the two positioning plates have symmetrically formed semi-circular openings to create track-passing pipe positioning ports. This invention can reliably and safely position and protect track-passing pipes, protect the exposed parts of the track-passing pipes, and precisely control the minimum spacing between track-passing pipes, thereby improving the installation quality of track-passing pipes, increasing construction efficiency, and ensuring the level of railway engineering construction.
Owner:中国水利水电第七工程局有限公司

A counter-hanging system suitable for high-pile wharf construction

ActiveCN224429923UReduce the impact of constructionReduce processing difficultyArchitectural engineeringSupport plane
This invention provides a reverse-lifting system suitable for high-pile wharf construction, including a support frame, a first beam assembly, a second beam assembly, and a formwork assembly. The support frame includes a first frame section and a second frame section connected together. The first frame section is set on the high-pile wharf, and the second frame section is set above the construction area of ​​the berthing component. The first beam assembly is set on the second frame section and has two sets of first reverse-lifting screws detachably mounted on it. Each set of first reverse-lifting screws is connected to a reverse-lifting bottom beam. The second beam assembly is set on the second frame section and has several second reverse-lifting screws detachably mounted on it. These several second reverse-lifting screws are connected to a bracket, which is connected to the reverse-lifting bottom beam. The formwork assembly is set on the bracket and used for casting the berthing component. This invention has a reliable structure, is convenient to construct, solves the technical bottlenecks of traditional processes, ensures the construction quality and efficiency of the berthing component, and meets the needs of modern high-pile wharf construction.
Owner:THE FIRST ENGINEERING COMPANY OF CCCC FOURTH HARBOUR ENGINEERING CO LTD

A vertical arrangement structure and fixing assembly of a middle-pressure pipeline through an isolation joint

The application discloses a kind of middle pressure pipeline through isolation joint vertical arrangement structure and fixed assembly, belong to middle pressure pipeline construction technical field.The middle pressure pipeline through isolation joint vertical arrangement structure and fixed assembly, by the hoop assembly is embraced in pipeline structure, make second piston be extruded and move up, make second piston move by the first piston movement of hydraulic drive, make first piston by connecting rod drive first locking block and limit block interlock, make the rotation direction of screw cylinder lock, when hoop assembly is locked in pipeline structure, make overall gravity move down, make first piston rod move down, then by the second piston rod movement of hydraulic drive, make second piston rod drive second locking block and aperture interlock, to bolt lock, prevent bolt from vibrating and loosening, to this can in hoop assembly assembly process, complete automatic locking screw cylinder, and the purpose of automatic locking bolt, to effectively play the effect of anti-disengagement, keep the firmness of pipeline installation.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Quality detection and acceptance method for concealed works and related equipment

The application discloses a concealed engineering quality detection and acceptance method and related equipment, and the method comprises the following steps: obtaining the component level identification of a target component, and binding the construction process data of the target component with the component level identification to generate a component level data packet; according to a preset spatial level relationship, aggregating the component level data packets of all target components belonging to the same space to be checked to generate a room level data packet corresponding to the space to be checked; in response to an acceptance request for the space to be checked, calling the corresponding room level data packet for acceptance determination, and generating a processing record associated with the space to be checked according to the acceptance determination result.
Owner:BEIJING JIZHI DIGITAL TECH CO LTD

A variable diameter transport device for pressure steel pipes in water conservancy engineering tunnels

This utility model discloses a variable-diameter transport device for pressure steel pipes in water conservancy engineering tunnels, including a frame body and wheels. The frame body includes a roof plate, a floor plate, and multiple side plates surrounding it. At least two parallel, through-type grooves are provided on the surface of the roof plate. Two brackets are slidably mounted on each groove via a displacement adjustment mechanism. The two brackets are symmetrically arranged and move synchronously towards or in opposite directions under the action of the displacement adjustment mechanism. This utility model allows for rapid adjustment of the distance between the two brackets through the displacement adjustment mechanism, enabling it to support pressure steel pipes of various diameters, effectively improving tunnel construction efficiency, reducing construction costs, and ensuring construction quality and safety.
Owner:SINOHYDRO BUREAU 12 CO LTD

A laser pointing device for rapid centering of PCCP pipe

ActiveCN224416039UHas convenient operation featuresquick placementLaser transmitterPower switching
A kind of laser pointing device for PCCP pipe inner quick division, including ruler body, ruler body includes rectangular frame and back plate installed in the back of rectangular frame, and cover plate installed in the front of rectangular frame;The upper center position of rectangular frame is installed with pipe leveler;The center axis of laser pointing device is coaxial with the center line of pipe leveler, and laser pointing device is fixedly installed in the lower aspect plate center of rectangular frame;Power supply box is fixedly installed on the back plate at the right side panel of the inside of rectangular frame, and power supply switch that projects the right side panel of rectangular frame is arranged on the right side of power supply box, and laser pointing device is electrically connected with power supply box;The present application has the advantages of simple structure, convenient operation, can quickly place ruler body in the inner port of PCCP pipe, and adjust to horizontal state, open power switch, the laser beam emitted by laser emitter can quickly determine the center line of pipe, so that the precision of subsequent measurement is significantly improved, effectively reduces the pipe installation error, improves the pipe installation quality.
Owner:SINOHYDRO ENG BUREAU 4

Permanent and temporary combined prestressed anchor rod structure

ActiveCN224495110UReduce the number of projectsReduce breakage and collapse holes
The utility model provides a kind of permanent and temporary combination prestressed anchor rod structure, including multistage anchor rod structure, the multistage anchor rod structure is sequentially from bottom to top anchorage section, free section one, anchor head one, free section two, anchor head two.The utility model can reduce anchor rod engineering quantity, construction difficulty and safety risk reduce, ensure that lining structure is stable and safe, reduce rock mass broken hole and side slope disturbance problem;Ensure that anchor rod structure is combined into complete unit with concrete, reduce tensioning prestress loss, ensure grouting full and dense, ensure construction quality, reduce engineering cost.
Owner:NO 3 ENG COMPANY LTD OF CCCC FIRST HARBOR ENG COMPANY +1

A cement precast panel component

The utility model provides a kind of cement precast slab component, it is related to building wall water seepage prevention technical field, including component main board, limiting small column distributed in component main board inside, concave-convex structure distributed in the outside of component main board, screw mounting hole being arranged on component board, limiting small column, screw mounting hole coaxial arrangement, screw mounting hole is located on limiting small column.The utility model compared with prior art has realized completely avoided the waterproof layer surface support mode of poor adhesion, solves the construction technology common fault problem that can simultaneously ensure the adhesion between each structure layer and waterproof long-term reliable, improves the technical scheme of waterproof wall surface decoration construction quality, also provides the advantage that necessary construction condition can be provided for the waterproof layer that can be formed by the waterproof material with strong fluidity and permeability under wall surface pressure flow.
Owner:FOSHAN XINYI CONSTR GROUP

Exterior cladding panel support structure

This utility model discloses an exterior wall cladding panel support structure, relating to the field of building construction technology. The support structure includes a support plate, a connecting plate, a connecting pipe, an upper cladding panel, and a lower cladding panel. The support plate comprises a support plate and a support plate. The support plate is vertically arranged, and the support plate is horizontally arranged with one end connected to the middle of one side of the support plate. The connecting plate is fixedly connected to the support plate and connected to a column via the connecting pipe. The bottom of the upper cladding panel has a first groove, and the top of the lower cladding panel has a second groove. The upper part of the support plate is fitted and engaged with the first groove to support the upper cladding panel, and the lower part of the support plate is fitted and engaged with the second groove to hook the lower cladding panel. This utility model ensures the exterior wall cladding panel is firmly fixed, effectively reduces construction time, improves construction efficiency, and guarantees construction quality.
Owner:TANGSHAN DUNSHI CONSTR ENG CO LTD

A kind of off-wall energy-absorbing lining composite structure suitable for high ground stress large deformation tunnel

The application discloses a kind of off-wall energy-absorbing lining composite structures suitable for high ground stress large deformation tunnel.The composite structure includes initial support layer, basalt fiber composite foam filling layer and secondary lining layer; during the excavation of high ground stress large deformation tunnel, a layer of concrete is sprayed on the surface of surrounding rock, and the initial support structure is formed after the concrete solidifies; under the premise of ensuring the clearance of tunnel, secondary lining is carried out on the outside of initial support, and off-wall lining space is formed between secondary lining and initial support; basalt fiber composite foam is used to fill the off-wall lining space, and basalt fiber composite foam filling layer is formed between initial support and secondary lining.The application provides an off-wall energy-absorbing lining composite structure suitable for high ground stress large deformation tunnel, which has low construction difficulty, is green and environmentally friendly, has low cost, is easy to expand, and can effectively ensure the construction quality and safety of high ground stress large deformation tunnel.
Owner:中国水利水电第七工程局有限公司

A construction convenient assembly type ceiling surface

ActiveCN224395877ULow skill level requiredEasy and efficient installationCeilingsKeelConstruction engineering
The utility model relates to the technical field of assembly type ceiling surface, especially a kind of assembly type ceiling surface of convenient construction. Including multiple main keels, vice keel and panel, multiple main keels are all installed with the suspender for being connected with the building top structure, multiple main keels are all provided with the first clamping assembly for being clamped with multiple vice keels, multiple vice keels are all provided with the second clamping assembly for being clamped with multiple panels. The utility model is through the setting of first clamping assembly and second clamping assembly, main keel and vice keel are clamped by first clamping assembly, vice keel and panel are clamped by second clamping assembly, without complex splicing operation, construction personnel only need to complete installation by corresponding clamping, reduce the requirement to the technical level of construction personnel, simplify construction process, make ceiling surface installation more convenient and efficient, significantly improve construction efficiency.
Owner:SHANGHAI JIACHUN DECORATION DESIGN ENG CO LTD +1

Super-hydrophobic soil water barrier and construction method thereof

PendingCN122257424Alow permeability coefficientprevent penetrationHops/wine cultivationSowingFiberDitch
The application discloses a kind of super-hydrophobic soil water-resisting layer and its construction method, belong to slope protection engineering technical field, the super-hydrophobic soil water-resisting layer is used for soft rock slope, by quality ratio is composed of basic component and functional component, basic component includes polymer curing agent 20 parts, guest soil 60 parts, straw fiber 5 parts;Functional component includes the total quality 0.5% of basic component starch graft acrylamide type microbial water-retaining agent, 2 parts nano SiO2, 0.3 parts KH-550 silane coupling agent, it can also be mixed with specific ratio grass seed.Its construction method includes four core steps of slope pretreatment, bottom curing, water-resisting layer laying, later maintenance, and drainage blind ditch strengthening measures are added for strong weathered soft rock slope.The super-hydrophobic soil water-resisting layer realizes the ecological restoration and long-acting water-resisting protection of soft rock slope, is suitable for the protection of various soft rock slopes in highway, railway, water conservancy and other engineering, has significant technical innovation and engineering application value.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT +1

A large-diameter hydraulic asphalt concrete paving method

ActiveCN115613579BSolve joint quality problemsReduce the effect of fast construction speedArchitectural engineeringStructural engineering
The present application relates to the technical field of roller compacted asphalt concrete impervious core wall in water conservancy and hydropower engineering, and particularly relates to a large-particle-size hydraulic asphalt concrete paving method, comprising the following steps: A. preparing the asphalt concrete core wall construction warehouse surface before paving; B. paving the large-particle-size hydraulic asphalt mixture prepared according to the optimized mixing ratio by using special paving equipment; C. compacting the large-particle-size hydraulic asphalt mixture to form a large-particle-size hydraulic asphalt concrete layer. The present application effectively solves the quality hidden trouble caused by paving the large-particle-size hydraulic asphalt concrete by using the existing hydraulic asphalt concrete paving technology, and highlights the advantages of fast construction speed, effective reduction of construction period and cost reduction of the large-particle-size hydraulic asphalt concrete.
Owner:中国水电建设集团十五工程局有限公司 +1

A type of supporting building formwork

This utility model proposes a supporting building formwork, including a first formwork, a second formwork, and two third formworks. The two third formworks are detachably connected between the first and second formworks, forming a casting chamber between the two third formworks and the first and second formworks. First assembly blocks are installed on both sides of the first formwork, and a first fixing block is detachably installed in the middle of each first assembly block. Second assembly blocks are installed on both sides of the second formwork, and a second fixing block is detachably installed in the middle of each second assembly block. A tubular elastic component is installed on the first fixing block, facing the second fixing block, and a multi-point impact component is installed at the end of the tubular elastic component to impact the second fixing block. This utility model achieves formwork removal through the tubular elastic component and the multi-point impact component, avoiding single-point force damage to the concrete, protecting structural integrity, simplifying the removal process, improving construction efficiency, and allowing the impact component position to be adjusted to adapt to different construction scenarios, thus reducing construction risks.
Owner:SHAANXI AEROSPACE YIDE HIGH-TECH IND CO LTD

Sensor change-out automation system and method

PendingCN122299343ASimple and reliable compositionSimple combinationComputer hardwareEngineering
This invention provides an automated sensor replacement system and method. The system includes an unmanned replacement device, a wireless positioning device, and an image transmission device. The unmanned replacement device can perform sensor replacement and fastening operations; the wireless positioning device collects and locates the sensor's position, elevation, and path; the image transmission device confirms, transmits, and records sensor readings; based on the path, battery level, and work location, the system can record, plan, and select a path after initial route exploration and automatically travel back and forth. The method is implemented through the system and includes: setting up and debugging the system; starting the unmanned replacement device and moving it to the work location, recording key points and passages along the way; performing reading operations, replacement and fastening operations, and / or scheduling and cyclical operations; and achieving retrieval and termination. This invention enables autonomous sensor installation and removal.
Owner:CHINA NAT PETROLEUM CORP +1

A device for excavating and excavating drainage channels in underground engineering projects

This utility model relates to the technical field of underground engineering construction equipment, and discloses a device for excavating and constructing underground drainage channels. The device includes: a base and a mounting plate, the mounting plate being located at the upper end of the base; four sets of buffer rods, each fixedly connected inside the base, the mounting plate being connected to the upper ends of the four sets of buffer rods; a mounting block and an adjusting assembly, the mounting block being fixedly connected to the upper end of the mounting plate, and the adjusting assembly being connected to the upper end of the mounting block. The advantages of this utility model are: through a unique structural design, it achieves efficient buffering and shock absorption, flexible height adjustment, and stable construction, solving the aforementioned problems existing in the prior art, and improving the quality, efficiency, and safety of underground drainage channel construction.
Owner:GUANGDONG JOINT CONSTR ENG GENERAL CONTRACTING CO LTD

Prefabricated shear wall aluminum mold hole filling and plugging device

The utility model discloses a prefabricated shear wall aluminum mould hole filling and plugging device, including the plugging plug and the grouting plug, install respectively in the both sides of shear wall aluminum mould hole, the grouting plug is circular table shape structure, and the inside coaxial opening has the cylinder cavity, install the piston disc of disc shape in the cylinder cavity, still have the guide rod fixedly in the cylinder cavity, the piston disc central opening has the perforation, is used for the axle position movement adjustment of bushing guide rod, and the cylinder cavity corresponds the limit device of guide rod end. Simple structure, easy to make and low cost, convenient operation, just need to plugging the both ends of prefabricated shear wall can start grouting filling, simple construction, construction quality controllable, guarantee plugging dense, save material cost and labor cost, reduce the later repair expense, guarantee construction quality and realize the project cost reduction and benefit increase at the same time, convenient to use, safe and reliable can improve construction efficiency and quality greatly.
Owner:ANHUI WATER CONSERVANCY DEV CO LTD

Reinforcement fixing device for cast-in-place pile

This utility model relates to the field of cast-in-place pile construction technology, specifically disclosing a reinforcing bar fixing device for cast-in-place piles. The device includes a steel formwork, which is circular in shape. Several sets of limiting rods are welded circumferentially to the top of the formwork, extending radially inwards towards the inside of the formwork. Limiting rings are welded to the ends of the limiting rods furthest from the formwork. Main reinforcement sleeves are fitted onto each set of limiting rods, and two limiting clamps are engaged at the top of the sleeves. This utility model ensures accurate positioning of the main reinforcement bars after pile head removal, and that the protective layer meets design requirements. It also ensures accurate pile diameter and top elevation after excavation and pile head removal, preventing damage to the pile head. Furthermore, it ensures straight and clean reinforcing bars after the pile head concrete is removed, guaranteeing the quality of the reinforcing bar construction.
Owner:山东金驰建设有限公司 +2

A large-diameter pipeline high-altitude assembly operation platform

This utility model belongs to the field of engineering construction technology, specifically a large-diameter pipeline high-altitude assembly operation platform, comprising: a main structure with an opening for mounting process pipelines from top to bottom, the opening being U-shaped, and lifting holes on the main structure; external platforms located at the bottom of both sides of the main structure; movable ramps located at the bottom of the main structure, with their ends resting on the two external platforms; and a protective cage located on both sides of the main structure, above the external platforms. This utility model's large-diameter pipeline high-altitude assembly operation platform is simple to manufacture, reusable multiple times, and performs well, ensuring pipeline construction quality and reducing labor and machinery costs.
Owner:CHINA CHEM ENG SECOND CONSTR

Crawler robot for concrete floor trowelling

ActiveCN224413066UEfficient trowelingPrecise trowelingArchitectural engineeringStructural engineering
The utility model discloses a caterpillar robot for concrete ground trowelling, including fuselage, caterpillar walking mechanism and trowelling device, wherein, trowelling device installs the front of fuselage, and caterpillar walking mechanism is located the bottom of fuselage, trowelling device includes trowel, rotating mechanism, mechanical arm and swing mechanism, wherein, swing mechanism sets up on the fuselage, and mechanical arm sets up on swing mechanism, rotating mechanism sets up on the movable end of mechanical arm, and trowel is connected with rotating mechanism. Therefore, can realize efficient, accurate, stable concrete ground trowelling operation, effectively promotes construction efficiency, guarantees construction quality, reduces construction cost.
Owner:SHANGHAI JUNHE CONSTR TECH CO LTD

A tunnel steel pipe rounding machine and construction method

This invention relates to the field of tunnel steel pipe circular support construction technology, and discloses a tunnel steel pipe circular support machine and construction method. The circular support machine has a ring frame structure, with symmetrical upper and lower walking mechanisms at both ends of the ring frame structure for self-movement and positioning within the tunnel steel pipe. Four sets of synchronously telescopic arc-shaped support frames are symmetrically arranged on the outer side of the circular main frame at both ends of the ring frame structure. Each set of arc-shaped support frames is connected to the main frame through a pair of support cylinders and a jack, and is uniformly driven by a hydraulic pump station, thereby forming a precise and stable circular support for the inner wall of the pipe. During construction, by controlling the synchronous extension and retraction of the arc-shaped support frames, the middle part of the pipe section is supported in sequence to assist the pouring of the outer concrete, and the butt weld of adjacent pipe sections is supported to assist the welding operation. This invention has a high degree of integration and is easy to operate, solving the problems of low efficiency and poor accuracy of manual support and correction, and effectively ensuring the construction quality and efficiency of pressure steel pipes in tunnels.
Owner:LUOYANG GAOFEI BRIDGE MACHINERY CO LTD

Wall waterproof structure

A waterproof wall structure, relating to the field of building wall waterproofing technology, sequentially includes a wall base, a cavity waterproof layer, a precast cement slab component, a bonding layer, and a block finishing layer. Injection port fittings and vent fittings are respectively installed at the lower and upper parts of the wall base. A sandwich layer accommodating the cavity waterproof layer is formed between the precast cement slab component and the wall base. The material constituting the cavity waterproof layer is injected into the sandwich layer through the injection port fittings to form the cavity waterproof layer. Compared with existing technologies, this invention has the advantages of completely avoiding waterproof layer support methods with poor adhesion, solving the common construction problem of ensuring adhesion between structural layers and long-term reliable waterproofing, improving the technical solution for waterproof wall decoration construction quality, and providing the necessary construction conditions for using highly fluid and permeable waterproof materials to form a waterproof layer under pressure on the wall surface.
Owner:FOSHAN XINYI CONSTR GROUP